We value your feedback

Click here to make suggestions


Water-Resistant PVA Water-Resistant PVA
Construction Chemicals Water-Resistant PVA is a single part, curing, polyvinyl, acetate-based emulsion.

Uses
Construction Chemicals Water-Resistant PVA is a multipurpose, water-resistant adhesive suitable for general assembly and lamination on particle board and MDF.

Features
· Ready for use
· Fast setting
· Good durability
· Conforms to the D3 requirements of BS EN 204-205
· Cross linked for use in RF curing.

Physical Properties
Colour White
Physical Form Viscous liquid
Viscosity (Brookfield 20rpm at 23ºC) Approximately 15 000 mPa.s
Specific gravity Approximately 1.10

Method of Application
Working Conditions
Minimum temperature for use 12ºC
Ambient temperature
(warehouse, wood, laminates, glue) 18 – 20ºC
Humidity of wooden substrates 8 – 12%

Coating Weight
Flat lamination, paper
(single face coverage) 20 – 70g/m²
Flat lamination, HPL, thick foils
(single face coverage) 100 – 200g/m²
Assembly (single face coverage) 150 – 200g/m²

Assembly Time 4-8 minutes
Pressure
Wood on wood 2 – 5 bar (kgf/cm²)
Laminates on wood 1 – 2 bar (kgf/cm²)

Pressing Time (minimum)
Wood on wood at 20ºC 10 – 15 minutes
Assemblies with one face preheated 2 – 3 minutes
Laminates on wood at 20ºC 20 – 30 minutes
Laminates on wood at 80ºC 3 – 4 minutes
Stabilisation Time 2 hours minimum

Storage
12 months closed in its original packaging between 5 and 30ºC.
Protect from frost.
After prolonged storage, stir well before use.

Packaging
25kg plastic Drum
5kg plastic container
1kg squeezy bottle

General Precautions
· Do not add anything to the adhesive to modify its properties.
· However, because some thickening may occur, it is possible to add water (maximum 2-3% by weight) to obtain the original viscosity.
· Provided that contact with iron is avoided, the adhesive should not cause staining.
· After each use, close the container tightly in order to avoid skin formation.
· Coating equipment and tools can be cleaned with warm (35-40ºC) water, before the adhesive has dried out.
· For health, safety and disposal, please refer to the material safety data sheet.

Important Recommendations
Before commencing work, these recommendations should be studied carefully together with specific items related to the adhesive. We suggest that suitable conditions should always be assessed by means of a test specimen.

Surface Perparation
· Substrates to be bonded should be perfectly clean, dry and free from dust and grease.
· For laminations, surfaces should be homogeneous and flat.
· Assemblies should be precise in order to avoid thick adhesive lines (0.2 – 0.3mm maximum).
· Wood should be allowed to condition several days in the workshop atmosphere (15 to 20ºC) before bonding. Its relative humidity should be approximately 10 to 12%.


Method of Use
Application of Adhesive
For lamination, apply an even coat of adhesive to one of the substrates by roller coater, brush or spatula.
For assembly applications, we recommend that both surfaces should be coated.
Coating weight depends on substrate, porosity, open time and ambient temperature.
General features:
Flat lamination 100 to 240 g/m²
Panelling, edge joining 200 to 350 g/m²
Other (mortice/tenon, tongue/groove) Coat both sides

Assembly
· The parts to be bonded should be brought together immediately after application, whilst the adhesive is still wet.
· The maximum open assembly time depends on the substrate porosity, ambient temperature and coating weight. Do not exceed the values given on Page 1.

Pressing
· After assembly, pressure should be maintained during the adhesive’s initial setting period, using conventional methods such as presses, vices, jigs, clamps or deal loads. Refer to the maximum pressure values on Page 1. This is not necessary for finger joints.
· Pressing time depends on such variables as ambient temperature and humidity, coating weight, porosity of substrates and dimension of assemblies. Reference values are given on Page 1 but a test specimen will allow this to be calculated.
· Pressing time can be reduced by heating one of the substrates to be bonded before pressing at room temperature. We recommend pre-heating of the surface (1 to 2 minutes to 80ºC).
· Hot pressing should only be recommended for double-sided flat lamination.

Stabilisation of Bonds
· Time between removal from the press and machining should be at least the value indicated on Page 1.
· Complete setting of the adhesive needs at least 24 hours.
· Optimal water resistance is achieved after 1 week.

Water Resistant PVA Health & Safety & Technical Data Sheet
Size (prices exclude VAT)
25 Litres - £69.17
5 Litres - £15.50
1 Litre - £6.77


Quantity:  

 




 
Oxalic Acid
1. Oxalic Acid

Size - prices exclude VAT

Quantity:

Envirosafe One Shot Injection Cream (DPC)
2. Envirosafe One Shot Injection Cream (DPC)

Size (prices exclude VAT)
5 Litres - £62.00
2 * 5 Litres - £61.00 each
5 * 5 Litres - £55.00 each
1 * 1 Litre - £15.60
6 * 1 Litre - £15.40 each
12 * 1 Litre - £15.00 each
380cc cartridge - £9.50
5 * 380cc cartridges - £7.85 each
10 * 380cc cartridges - £7.10 each

Quantity:

Tanking Slurry - 25kg
3. Tanking Slurry - 25kg


Price:    £45.00
excluding  VAT

Quantity:

Wood Weld PU - 310ml
4. Wood Weld PU - 310ml

Number of Cartridges (prices exclude VAT)
One (£6.50)
Box of 12 (£4.98 per cartridge)
5 Boxes of 12 (£4.50 per cartridge)
11 Boxes of 12 (£4.00 per cartridge)

Quantity: